库布齐沙漠南缘抛物线形沙丘表面风沙流结构变异

陶彬彬, 刘丹, 管超, 哈斯额尔敦

Variation of aeolian sediment flux profiles on a parabolic dune at the southern fringe of the Hobq Desert

Binbin TAO, Dan LIU, Chao GUAN, Eerdun HASI

表2 沙丘不同部位风沙流结构的函数拟合情况

Tab.2 Results of the regression analyses for the aeolian sediment flux profiles

沙丘部位 观测点位 V/(m-1·s-1) Qm/(g·m-1·s-1) a b QC1 QC1-Qm R2 北断面 H 6.22 5.51 1.918 0.056 5.214 -0.301 0.95 I 6.57 7.35 5.295 0.027 6.934 -0.419 1.00 J 7.03 9.48 5.114 0.038 9.537 0.058 0.98 K 7.86 21.92 12.035 0.037 21.967 0.043 0.99 L 7.31 10.97 7.531 0.028 10.145 -0.828 0.99 中轴断面 H 6.63 2.80 0.828 0.071 2.757 -0.047 0.99 I 6.96 9.87 6.301 0.030 9.362 -0.507 1.00 J 7.23 11.98 7.637 0.032 11.977 -0.001 0.99 K 7.45 15.01 9.740 0.030 14.548 -0.462 1.00 L 7.14 9.48 6.513 0.028 8.996 -0.485 1.00 南断面 H 6.35 0.25 0.079 0.062 0.235 -0.011 0.95 I 7.32 3.90 1.882 0.041 3.759 -0.144 0.99 J 8.00 19.05 9.379 0.040 18.370 -0.676 1.00 K 8.41 13.89 5.921 0.048 14.007 0.112 0.96 L 7.17 8.70 4.724 0.036 8.269 -0.435 0.99 北翼 P 5.54 0.91 0.333 0.055 0.883 -0.024 0.97 Q 5.94 9.88 3.989 0.050 9.739 -0.137 1.00 R 6.37 13.45 8.402 0.032 13.335 -0.116 1.00 S 5.82 7.57 7.409 0.020 7.030 -0.545 1.00 T 5.59 2.44 1.012 0.048 2.363 -0.077 0.99 南翼 p 5.64 0.32 0.072 0.104 0.318 -0.001 0.99 q 7.66 5.71 2.711 0.041 5.482 -0.224 0.99 r 8.93 26.14 10.396 0.052 26.081 -0.063 1.00 s 7.05 21.30 12.075 0.035 20.986 -0.312 0.99 t 3.48 3.76 2.219 0.030 3.244 -0.520 0.96 脊线 A 4.70 0.97 0.473 0.041 0.950 -0.021 1.00 B 4.92 1.75 0.619 0.059 1.749 0.003 1.00 C 6.15 5.53 4.428 0.025 5.493 -0.039 1.00 D 5.86 2.40 1.910 0.024 2.229 -0.173 0.99 E 5.98 8.66 2.290 0.085 8.806 0.147 0.97 F 6.04 4.33 3.937 0.021 3.962 -0.371 0.99 G 5.06 0.64 0.253 0.047 0.583 -0.061 0.93